Shell for dynamite or other explosives.



F. DUTCHER.

SHELL FOR DYNAMITE 0R OTHER ExPLoSlI/Es.

APPLICATION FILED NOV. 4I 15H2.

Intcncd July 2U, 1915.

@n uanoz nt www@ wmcooao i@ za MM2 FRANK DUTCHER, 0F VERSAILLES, PENNSYLVANIA, .SSIGNOB 0F ONE-HALF T0 ALLEN' S. PATTISON, OF WASHINGTON, DISTRICT 0F COLUMBIA.

SHELL FOB.v DYNMITE OB OTHER IAOSIVES.

Specioation of Letters Patent.

Patented Jury eo, i915.

Application led November 4, 1912. Serial No. 729,519.

drawing.

My invention relates to improvements in shells for dynamite or other explosives, and the principal objectsvof my present invention are: l. To produce a shell so constructed that when filled with the explosive an opening is formed in the explosive within the shell to receive either the detonating cap and fuse, or an electric fuse, thus avoiding the necessity of the user drilling, an opening in the explosive with its consequent danger for the reception of the detonating cap or fuse, thus eliminating this dangerous feature in the use of dynamite sticks as now furnished to the consumer. 2. To roduce an absolutely waterproof shell be'ore the explosive is placed therein, to avoid a. dipping of the charged shell in hot parailin wax with its consequent danger, which is the custom to-day in waterprooing dynamite or other explosive shells. 3. To positively seal both ends of the shell and thereby positively prevent any leakage of the explosive from the shell while in transportation or storage with the consequent danger, which leakage sometimes happens with the dynamite and explosive shells as now manufactured and sold, and in practice this defect sometimes causes serious explosions either in transportation or storage', or both. 4. To produce a shell which is safe in transportation and storage and prevents jar directly on the ends of the explosive during transportation and which is also so constructed that when the' fuse is placed within the shell by the user the fuse can be locked therein and the stick let down in the hole provided to receive it without any danger of the fuse becoming disconnected, and, in fact, which will permit the shell or stick to be lowered by the fuse without any danger of disconnecting the latter from the shell.

Dynamite and explosive shells as manufactured and sold to-day and as known to me, consist of a paper tube having open ends. The tube is filled with this dynamite,

after which a sheet of paper wider than the length of the tube is rolled around the shell with both ends extending beyond the end of the tube or shell containing the dynamite. These extended paper ends are folded in over the dynamite or explosive in the shell and folded and pasted to hold the dynamite therein. The shell or tube being thus charged with dynamite or explosive, the whole is dipped into a hot solution of paraffin wax which involves some `danger from the heat of the Wax. Furthermore, when this shell or stick of dynamite is thus waterproofed and delivered in this form to the user, it is necessary for the user to drill or cut out an opening in the dynamite large enough to receive the detonating cap or fuse, or both, which under certain conditions is dangerous and liable to cause premature eX- plosion. rlhe shell which is now furnished loaded with dynamite is of a flimsy nature and the dynamite being of a greasy character, the folded paper ends of the shell arefrequently burst open and the dynamite leaks or sifts out, making it unsafe for transportation or storage, which defect has been the cause of some serious explosions.

My present improvement is to overcome the foregoing undesirable features of the dynamite sticks or shells as now manufactured and sold to the consumers.

In the accompanying drawings-Figure .l is a perspective view of a charged dynamite or explosive shell with the fuse therein ready to be used. Fig. 2 is a perspective view of the fuse receiving end of my improved explosive shell, showing the screw cap removed and wood pin in the act of being removed for the reception of a detonatmg cap and fuse. Fig. 3 is a sectional View of the fuse end of my improved dynamite or explosive shell, showing the parts in position as manufactured and sent tothe consumer. Fig; 4 is a longitudinal central sectional View of my improved dynamite or explosive shell, showin it charged as manufactured and sold an in an inverted position. Fig. 5 is a sectional view of my improved dvnamite or explosive shell, showing the detonating fulminate or cap and also the fuse in position. Fig. 6 is' a similar view showing an electric fuse applied to my improved dynamite or explosive shell, and a sli ht modification of the screw cap.

n carrying out my invention, I provide a ber tube 1, of substantial character, and this tubein the process of manufacture has one end 2 turned or crimped inward `leavmg a central opening 3. A wood member or plug 4 is provided and this plug consists of a flange a and a projection b, the projection b extending through the opening 3 and externally screw-threaded lat c to receive an I internally screw-threadedl cap 5. Theproshown. The tube with the member 4 in position therein is then placed in melted paraiiin Wax and boiled a sufficient length of time to waterproof the shell and the Wood member. This hafving been'done, a pin 6 with a head 7- is placed'with the pin portion through the opening d inthe projection b, and the screw-cap 5 screwed thereon which holds the pin 6 in osition. The pin and the screw-cap are rst Waterproofed with paraiiin before they are placed inposition on Vthe shell.

With the parts'in the osition shown in Fig. 3, the tube is inverte as shown in Fig.

. 4'and the explosive charge 8 placed therein,

the pin76 making. a hole in the charge for a purpose to be presently described.

. `In Fig. 6 I have shown a slight modification in that the screw-cap 5', there shown is made of metal instead of Wood, as in the other figures of the drawin s. The shell beingcharged, a cup-shape paran disk 9 isplaced and cemented inA the bottom of the tube 1, and preferably furtherr secured therein by turning the projecting end 10 of the tube inward and around the disk, as shown in dotted lines 11.

The shell being manufactured andsold in the form shown 1n Fig. 4, the user lremoves the screw-cap 5, and removes the pin 6. The screw-cap is replaced and the detonating cap or fulminate 12 lis inserted 4in the/opening f formed in the charge 8 by the pin 6, and at the inner end-of the opening. The fuse gis then inserted through the opening in the cap and the opening in the projection I), as shown Ain Fig. 5. lf desired,the fuse may be placed in position before the cap is placed thereon, and a wrapping of string j or tape h placed around the fuse at the outer end of the projection b and then the cap 5 placed in position. This arrangement will lock the fuse in position so that it cannot become detached, and which will 'enable the fuse, if desired, to-be used as the means of lowerin the shell into the hole made in the groun or other thing or substance to Ybe subjected to the explosive force of the shell.

In Fig. 6 I have shown the improvement with the usual electric fuse applied thereto.' A dynamite shell, constructed as herein shown and described, will be safe in the hands of the user; safe in transportation and in storage and while the expense of construction may be slightly increased over the -f-form of shell as nowmanufactured and sold, yet the plug and cap can be very cheaply made and will not increase the cost of manufacture much, and at the same time Will make the shell or stick safe, as above explained, Whichis by far a more important factor than any slight increase in the cost of manufacture occasioned by theluse of this improvement. The improvement will protect the manufacturer; will protect the person and roperty used in transporting it, and will la ord a protection to persons and property While in storage all of which are of paramount importance.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. An explosive shell comprising a tube having a closure. for its bottom, a closure for its fuse receiving end, said closure havmg an opening, a removable in passing through the opening and into t e shell for the purpose described, and means for holding the pin in position.

2. An explos1ve charge comprising a tube having 'a closure at its bottom, a plug at its opposite end, the said plug having a fuse receiving opening, a removable member adapted to pass through the said opening into the explosive charge for the urpose described, and a removable cap inter ocking with the plug to hold the removable member in position.

3. An explosive shell comprising a tubehaving a closure at one en the opposite end having a fuse receiving opening, a removable member adapted to pass through the opening and into the explosive charge for the purpose described, and a removable cap adapted to lock the removable member in positlon.

4. An explosive shell com rising a tube having a closure at one en the opposite end having a fuse receiving opening, a removable member passing through ingr into the explosive charge or the urpose described, a removable cap for hol ing the removable member in position, the cap having an opening registering with the fuse receiving opening for the purposedescribed. 5. An ex losive shell comprising a tube having a c osure -at one end, the opposite end having a plug with a projection, the plug and projection having a fuse receiving opening, a removable member passing through the opening and into the explosive charge, and a removable cap removably engaging the said projection for holding the removable member in' position.

6. An explosive receiving shell, comprising a tube having a firm bottom closure, the

the openopposite end of the tube having an inwardly extendingange leaving a central opening, a removable pm assing through the opening to form a se receiving o ening in the explosive charge, and remova le means clamped to the said flange for removably holding the pin in position.

7. An explosive containing shell, comprising a tube havin a closed bottom, the opposite end of the tu e having an inwardly extending ange, a member at the inner side of the flange, said member having an opening, a removable gin passing through the opening and into t e tube for the purpose described, and a removable ca interlocking with vsaid member and hol ing the removable pin in position.

8. An ex losive receiving, shell, comprising a tube aving a closed bottom, the op osite end of the tube having an inturned ange, a member within the tube and engagmg the inner side of the ange, a removable ca outside of the {iange and interlocking with the said member and clamping the flange between the member and cap, said member land cap having registerin openings, a removable in passing throng the opening of the mem er and into the tube for the purpose described, the pin having a flange at its outer end, and the ca locking the flange between the member an the cap all combined for the purpose described.

In texstimon'1 whereof hereunto aiiix my signature in t e presence of two witnesses.

FRA DUTCHER. Witnesses:

R. W. JUNKER, G. M. LEON 

